<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" size="medium" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" size="medium" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe max-height="565">
        <el-table-column type="index" label="序号"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="240px">
          <template slot-scope="scope">
            <!-- 编辑按钮 -->
            <el-button type="primary" size="mini" @click="showEditDiaolog(scope.row.id)">编辑</el-button>
            <!-- 删除按钮 -->
            <el-button size="mini" type="danger" @click="deleteDiaolog(scope.row.id)">删除</el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色提示" placement="top" :enterable="false">
              <el-button type="warning" size="mini" @click="setRole(scope.row)">分配角色</el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[10, 20, 30, 40]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="totle">
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户"
               :visible.sync="addDialogVisible"
               width="25%" @close="addDialogClosed">
      <!-- 内容主体 -->
      <el-form
        ref="addUserFormRef"
        :model="addUserForm"
        :rules="addUserFormRules"
        label-width="80px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addUserForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addUserForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addUserForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addUserForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <div slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户"
               :visible.sync="editDialogVisible"
               width="25%" @close="editDialogClosed">
      <!-- 内容主体 -->
      <el-form
        ref="editUserFormRef"
        :model="editUserForm"
        :rules="editUserFormRules"
        label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editUserForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editUserForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editUserForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <div slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </div>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoledialogVisible"
      width="30%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoledialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data() {
    // 自定义邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    // 自定义手机号规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^[1][3,4,5,7,8,9][0-9]{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取用户列表查询参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 每页显示多少数据
        pagesize: 10
      },
      userList: [],
      totle: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 用户添加
      addUserForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 用户添加表单验证规则
      addUserFormRules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 2, max: 10, message: '长度在 2 到 10 个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入用户密码', trigger: 'blur'},
          {min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur'}
        ],
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: '请输入手机号', trigger: 'blur'},
          {validator: checkMobile, trigger: 'blur'}
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editUserForm: {},
      // 修改表单的验证规则对象
      editUserFormRules: {
        email: [
          {required: true, message: '请输入邮箱', trigger: 'blur'},
          {validator: checkEmail, trigger: 'blur'}
        ],
        mobile: [
          {required: true, message: '请输入手机号', trigger: 'blur'},
          {validator: checkMobile, trigger: 'blur'}
        ]
      },
      // 控制分配对话框的显示与隐藏
      setRoledialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中的角色I值d
      selectRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const {data: res} = await this.$http.get('users', {params: this.queryInfo})
      // console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userList = res.data.users
      this.totle = res.data.total
    },
    // 监听 pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(`每页 ${newSize} 条`)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 pagenum页码值 改变事件
    handleCurrentChange(newPage) {
      // console.log(`当前页: ${newPage}`)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 switch开关 状态改变
    async userStateChanged(userInfo) {
      // console.log(userInfo)
      const {data: res} = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      // console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },
    addUser() {
      // 提交请求前，表单预验证
      this.$refs.addUserFormRef.validate(async valid => {
        if (!valid) return
        const {data: res} = await this.$http.post('users', this.addUserForm)
        // console.log(res)
        if (res.meta.status !== 201) {
          return this.$message.error(res.meta.msg)
        }
        this.$message.success(res.meta.msg)
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 监听添加用户对话框的关闭事件,清空输入
    addDialogClosed() {
      this.$refs.addUserFormRef.resetFields()
    },
    // 展示编辑用户对话框
    async showEditDiaolog(id) {
      // console.log(id)
      const {data: res} = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.editUserForm = res.data
      this.editDialogVisible = true
    },
    // 监听编辑用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editUserFormRef.resetFields()
    },
    // 修改信息并验证
    editUser() {
      this.$refs.editUserFormRef.validate(async valid => {
        if (!valid) return
        // 发起修改用户信息的数据请求
        const {data: res} = await this.$http.put('users/' + this.editUserForm.id, {
          email: this.editUserForm.email,
          mobile: this.editUserForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error(res.meta.msg)
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        return this.$message.success(res.meta.msg)
      })
    },
    // 根据id删除对应的用户信息
    async deleteDiaolog(id) {
      // 弹框询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // 点击确定 返回值为：confirm
      // 点击取消 返回值为： cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const {data: res} = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
      this.getUserList()
    },
    // 控制分配角色对话框
    async setRole(userInfo) {
      // console.log(userInfo)
      this.userInfo = userInfo
      // 在展示对话框之前，获取所有角色的列表
      const {data: res} = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        // 获取角色列表失败
        return this.$message.error(res.meta.msg)
      }
      this.rolesList = res.data
      this.setRoledialogVisible = true
    },
    // 点击按钮，分配角色
    async saveRoleInfo() {
      if (this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const {data: res} = await this.$http.put(`users/${this.userInfo.id}}/role`,
        {
          rid: this.selectRoleId
        })
      if (res.meta.status !== 200) {
        this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
      this.getUserList()
      this.setRoledialogVisible = false
    },
    // 监听关闭橘色分配对话框事件
    setRoleDialogClosed() {
      this.selectRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>

</style>
